Apron roughener for condensers



D. O. PEASE APRCN ROUGHENER FOR CONDENSERS Filed Feb. 3, 1921 a F 'vvvvvvvv vvvvvv vvvvv I N VEN TOR.

W ATTORNEY.

Patented @ctQZB, 1923 anai-r DUBELL O. IPEASE, OF HAMPDEN, MASSACHUSETTS.

APRON ROUGHENER FOR CONDENSEBS. 7

Application filed February 3, 1921. Serial No. 442,193.

To all whom it may concern:

Be it known that I, DURELL O. PEAsE, a citizen of the United States, residing in Hampden, in the county of Hampden and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Apron Itougheners for Condensers, of which the following is a specification.

My invention relates to condensers of the type adapted to work in combination with a finisher card for wool, cotton waste, asbestos, or other similar fibrous materials.

Condensers of this character are provided with one or more pairs of aprons usually of leather, between which the strips of sliver received from the card are carried forward and simultaneously rolled into roving by the reciprocations of the aprons.

In order that the operation of the aprons on the sliver shall be effective the opposing surfaces of the aprons should be of such a nature as to prevent any slippage of the sliver while being acted on by the motions of the aprons. Heretofore this has been accomplished by making use of aprons prepared, before installing in place on the rolls, with grooves cut or stamped in the leather or the apron is perforated with small round holes. Aprons prepared according to the old manner lose their effectiveness, the longer they-are run, by the edges of the grooves or holes becoming blunt from wear and their surfaces becoming glazed by dust I etc., from the fibre being worked, clogging the holes or grooves. When the aprons get in this condition it is necessary to replace them with new aprons thus causing expense and decreasing the productive capacity of the carding machine due to necessary'stoppage.

The object of my invention is to obviate the above disadvantages by providing automatic means for maintaining a suitable working surface on the apron thus ensuring its efficiency and prolonging its usable activity. 1

In the accompanying drawings Figure 1 represents a diagrammatic sectional elevation of the rub-aprons and frame of a contion.' Figure 2 is a front elevation of the 7 same. Figure 3 is an enlarged'perspective view of a portion of the roughening device.

Referring to the drawings, -1 designates one of the condenser frames, between a pair of which are mounted a pair of apron rolls 2 and 3 over which the endless leather aprons 4 and 5 are drawn. Said rolls, as is well known in condensers of this type, are provided with means (not shown) for simultaneously imparting to them a forward rotary motion combined with a reciprocating motion the latter causing the upper pair of rolls and apron to move in one direction while the other pair move in the opposite. direction, thereby acting upon the sliver received from the card, and forming it into a roving and then delivered to suitable winding means at the front of the condenser. r

In order that the operation of the apron on the sliver shall be effective, the working surface of either or both aprons'is roughened by being drawnin contact with a series of sharp pointed steel pins 6 held in a V stationary relation to the apron. 'Preferably these pins are set in a frame 7 suitably fastened to shaft 8 rotatable in bearings 9 fixed to the condenser frame. Bythi's ;con

struction the pins may .be adjusted into more or less contact with the apronsas desired and locked in position by tightening set screw 10.

In operation the surface of the apron is covered with scratches formed by the pins as the apron moves in contact with them, thus roughening the surface and at the same time removing any dirt, grease, etc. that may have accumulated.

Having fully described my invention what I clann as new and desire to secure by Let.

thereto, the combination with said rubaprons, of automatic means for roughening the working surface of one of the aprons while the same is 1n motion.

2. In a condenser for cards having rubaprons and means for simultaneously imparting rotary and reciprocating motions thereto, the combination with said rubaprons of a shaft adjustably mounted on the condenser frame, a frame fixed to the shaft,,and a plurality of sharp pointed pins fixed in said frame, said pins being in scratching contact With the Working surface of the apron. 19

In testimony whereof, CI have signed this specification.

'DURELL O. PEASE. 

